# SDR AALA2018051709006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 9, 2018
- Submitted: May 17, 2018
- Operation: Air carrier
- Aircraft: [N904AN](https://openairdocs.org/aircraft/N904AN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 29506
- Aircraft time: 56,687 hours, 22,956 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Line
- Condition: Leaking
- Location: Hyd System
- Stage of operation: CR
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA2018051709006

## Discrepancy

EMERGENCY DECLARED DUE TO AN A SYSTEM HYDRAULIC QUANITY DECREASING AT  1% EVERY 6 MINUTES DOWN TO 37%.  LANDED, REPLACED THE AUTOPILOT ELEVATOR HYDRAULIC PRESSURE LINE REDUCER AND O-RING IAW AMM 22-11-26. LEAK AND OPS CHECKED OK.  THE AIRCRAFT WAS GROUNDED.

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